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sciroccosteve
Joined: 16 Apr 2012
Posts: 215
Location: Rochester, NY
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 Posted: Thu Jul 16, 2015 8:19 am Post subject: Snail shell mounts: Poly or non poly |
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My mounts are old and soft. About to replace. Whats the consensus on either?
Also: I CAN FINALLY TRUST IT!
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1979 924
2000 V6 Passat
"Let the fools have their tar tar sauce."
C. Montgomery Burns |
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Kenodog
Joined: 25 Jun 2003
Posts: 2669
Location: Vancouver,B.C.
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| Posted: Thu Jul 16, 2015 8:31 am Post subject: |
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Non. No squeaking/constant re-greasing issues.
Leigh
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1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Thu Jul 16, 2015 8:50 am Post subject: |
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| Kenodog wrote: | Non. No squeaking/constant re-greasing issues.
Leigh |
Never had any problems with filling the mount on my 951. Also, its not as if the 924 is a particularly quiet car or that you need to grease transaxle mounts since the amount of movement involved should be miniscule.
A bigger issue for 924's is the lack of decent engine mounts, especially on the passenger or RH side.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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Kenodog
Joined: 25 Jun 2003
Posts: 2669
Location: Vancouver,B.C.
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| Posted: Thu Jul 16, 2015 9:41 am Post subject: |
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I just can't STAND having to add 'remove bushings and re-grease' when the difference in performance just would not be noticeable in these cars. Unless you have completely ripped out ALL of the components and are replacing them entirely just replacing this one set would not be noticed in a blind taste test.
And my 931 is really quiet. . .
Leigh
_________________
1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
2024 KLX140 |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Thu Jul 16, 2015 9:47 am Post subject: |
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| Kenodog wrote: | I just can't STAND having to add 'remove bushings and re-grease' when the difference in performance just would not be noticeable in these cars. Unless you have completely ripped out ALL of the components and are replacing them entirely just replacing this one set would not be noticed in a blind taste test.
And my 931 is really quiet. . .
Leigh |
Never had to grease any of the polyurethane bushings I've ever used for transaxle or motor mounts. It's all about context.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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v8carreragts
Joined: 05 Sep 2003
Posts: 665
Location: Tucson, AZ
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| Posted: Thu Jul 16, 2015 12:11 pm Post subject: |
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I cleaned mine and filled them with polyurethane. There should be no reason to grease them as there is nothing rotating in the polyurethane.
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84 944--924 Carrera GTS clone w/520HP Chevy 302 V8--RUNNING!
2015 AUDI Q7
2013 Dodge Charger R/T AWD HEMI
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Thu Jul 16, 2015 12:17 pm Post subject: |
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Agree, pretty simple to fill with urethane. The bigger downside of doing this is that the solid mounts will transmit vibration to drive line and shift lever, especially if using the brass or delrin shift linkage bushings.
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erstwhile owner of just about every 924 variant ever made |
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Kenodog
Joined: 25 Jun 2003
Posts: 2669
Location: Vancouver,B.C.
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| Posted: Fri Jul 17, 2015 6:43 am Post subject: |
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All I know is I have poly bushings on my Si and the bar and bushings are getting removed this weekend. And yes, they have been lubed properly with poly lube. Annoying, squeaky poly.
Leigh
_________________
1979 Euro 931, Olive
1981 931, Sabine
1991 Ford Ranger XLT 4x4, Ricky
1996 Ford E-350 ex-FedEx Van
2014 Mazda CX-5 (Kinderwagon)
2019 KTM 790 Adventure
2024 KLX300
2024 KLX140 |
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sciroccosteve
Joined: 16 Apr 2012
Posts: 215
Location: Rochester, NY
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| Posted: Fri Jul 17, 2015 8:31 am Post subject: |
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| ideola wrote: | | especially if using the brass or delrin shift linkage bushings. |
I made my own out of oilite bronze.....
So it is looking like its a healthy mix of preferences. Now, I have got a very healthy layer of dynamat throughout the car, so internal noise isnt much of a concern.
Any one have any idea where to buy these bushings? I posted this thread before I even started looking, just know that my bushings are s h o t shot.
_________________
1979 924
2000 V6 Passat
"Let the fools have their tar tar sauce."
C. Montgomery Burns |
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sciroccosteve
Joined: 16 Apr 2012
Posts: 215
Location: Rochester, NY
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| Posted: Fri Jul 17, 2015 8:32 am Post subject: |
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| v8carreragts wrote: | | I cleaned mine and filled them with polyurethane. There should be no reason to grease them as there is nothing rotating in the polyurethane. |
This is something I could do, is there any write up you used?
_________________
1979 924
2000 V6 Passat
"Let the fools have their tar tar sauce."
C. Montgomery Burns |
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ideola
Joined: 01 Oct 2004
Posts: 15550
Location: Spring Lake MI
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| Posted: Fri Jul 17, 2015 9:12 am Post subject: |
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Which bushings are you looking to buy? The brass shifter bushings are NLA. I can still get the OEM or the Delrin aftermarket, the latter of which I now prefer over brass. The brass are really nice for firm shifting, but on the street they do transmit what for some might be an annoying amount vibration into your hand and are noisy at certain resonant frequencies. The Delrin are nearly as firm with not nearly the noise or vibration.
If you're referring to the bushings for the G31 trans mounts, the bushings themselves are not available, and I believe the entire mount assembly is NLA. So to make them you would need to find a used pair, remove the rubber, and pour your desired material into the bracket. Keep in mind you can select a variety durometer hardnesses to achieve the desired compliance for your use.
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erstwhile owner of just about every 924 variant ever made |
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leadfoot
Joined: 11 Dec 2002
Posts: 2222
Location: gOLD cOAST Australia
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| Posted: Fri Jul 17, 2015 11:18 am Post subject: |
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Ideally knowing the stock firmness would be handy...
For previous engine mounts I used urethane inbetween the spaces to stiffen them, clean with grease remover, tape up one side of mount, get caulking gun and select urethane tube and inject it in, use scraper for excess on top side, can file it down/cut of excess after curing too depending on stiffness
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1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress... |
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sciroccosteve
Joined: 16 Apr 2012
Posts: 215
Location: Rochester, NY
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| Posted: Fri Jul 17, 2015 11:21 am Post subject: |
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| ideola wrote: |
If you're referring to the bushings for the G31 trans mounts, the bushings themselves are not available, and I believe the entire mount assembly is NLA. So to make them you would need to find a used pair, remove the rubber, and pour your desired material into the bracket. Keep in mind you can select a variety durometer hardnesses to achieve the desired compliance for your use. |
This is what I guess I will have to do
_________________
1979 924
2000 V6 Passat
"Let the fools have their tar tar sauce."
C. Montgomery Burns |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Fri Jul 17, 2015 12:04 pm Post subject: |
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I ordered my 80 durometer pourable polyurethane from McMaster-Carr. It was cheap and easy.
Hardest part will be getting it all clean enough to get the polyurethane to stick. Duct tape works well for sealing the off to create a mold.
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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leadfoot
Joined: 11 Dec 2002
Posts: 2222
Location: gOLD cOAST Australia
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| Posted: Fri Jul 17, 2015 1:38 pm Post subject: |
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So do you know whats stock durometer value? Out of curiosity what are the vibratechnics engine mounts if you know that too???
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1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress... |
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